package filter;

import entity.User;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(urlPatterns = {"*.cart","*.order","/shop/cart.jsp","/shop/myOrder.jsp","/shop/myOrders.jsp","/shop/order.jsp","/shop/success.jsp"})
public class CheckLoginFilter implements Filter {
    @Override
    public void init(FilterConfig filterConfig) throws ServletException {

    }

    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request= (HttpServletRequest) servletRequest;
        HttpServletResponse response= (HttpServletResponse) servletResponse;

        User user= (User) request.getSession().getAttribute("user");


        if(user==null){
            response.sendRedirect(request.getContextPath()+"/shop/login.jsp");
            return;
        }

        filterChain.doFilter(request,response);
    }

    @Override
    public void destroy() {

    }
}
